# -*-coding:utf-8-*-

a = ('a', 'b', 'c', 'd')
b = ['a', 'b', 'c', 'd']
c = {'a': 1, 'b': 2, 'c': 3, 'd': 4, }
d = 'abcd'

for i in a:
    print(i, end=' ')
print()
for i in b:
    print(i, end=' ')
print()
for i in c:
    print(i, c[i], end=' ')
print()
for i in d:
    print(i, end=' ')
print()